Sound power and acoustic efficiency of an installed GE F404 jet engine-Reference-Cited by-同舟云学术

Sound power and acoustic efficiency of an installed GE F404 jet engine

Published:2023-07-01 Issue:7 Volume:3 Page:
ISSN:2691-1191
Container-title:JASA Express Letters
language:en
Short-container-title:

Author:

Christian Matthew A.¹,Gee Kent L.²^ORCID,Streeter Jacob B.²,Wall Alan T.³,Campbell Steven C.⁴

Affiliation:

1. Department of Mechanical Engineering, Brigham Young University 1 , Provo, Utah 84602, USA

2. Department of Physics and Astronomy, Brigham Young University 2 , Provo, Utah 84602, USA

3. Air Force Research Laboratory, Wright-Patterson AFB 3 , Ohio 45433, USA

4. Ball Aerospace Incorporated 4 , Dayton, Ohio 45433, USA matthew.christian@byu.edu , kentgee@byu.edu , jacobbstreeter@gmail.com , alan.wall.4@us.af.mil , steven.campbell.28.ctr@us.af.mil

Abstract

Classical jet noise theory indicates that radiated sound power is proportional to the jet velocity raised to the eighth and third powers for subsonic and supersonic jets, respectively. To connect full-scale measurements with classical jet noise theory, this letter presents sound power and acoustic efficiency values for an installed GE-F404 engine. When subsonic, the change in sound power follows the eighth-power law, and the sound power change approximately follows the third-power law at supersonic conditions, with an acoustic efficiency of ∼0.5-0.6%. However, the OAPWL increase from subsonic to supersonic jet velocities is greater than would be predicted.

Funder

Office of Naval Research

Publisher

Acoustical Society of America (ASA)

Subject

Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics

Link

https://pubs.aip.org/asa/jel/article-pdf/doi/10.1121/10.0019866/18074988/073601_1_10.0019866.pdf

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4. Effects of atmospheric turbulence on the interference of sound waves above a finite impedance boundary;J. Acoust. Soc. Am.,1979

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